Adjustable wrench.



J. G. BURGESS.' ADJUSTABLE WRENCH. l APPLICATION FILED APR. 2o, '1908.

Patented Oct. 13,. 1908.

WI TN ES SES INVENTOR:

ATTORNEY.

UNITED sTAT-ES PATENT ornIon AJAMES o. BI-Insassen 'INnIANAroLIsINnIANA AssIeNoR fro LEO -M. BARRETT, or,A j INDIANAPOLIS, INDIANA.

AD JUSTABLE v WRENCH.

Specicatoniof Letters Patent.

Patented Oct. 13, 1908.

y Allplieatidn md Aprii'zo, 196s. serial No. 428,185.

To .all whom 'it may concern-:i

.Be-it known thatI, JAMES C. BRenss, al citizen of the United States, residing at In-r dianapolis, in the county .of Marion 'and State of Indiana, have 'inventedcertain new and useful Improvements in Adjustable Wrenches; and I do declare the following to be a full, clear, and vexact description of thev invention, reference being had to the accompanying drawings, and to the `lettersand figures of reference marked thereon, whichv form a part of this specification. j Y

This invention relates to adjustable wrenches that have screws for adjusting and holding the movable aws, the invention having reference particularly to a type of wrench that has a quick actionscrew 4and also means for lockingth'e screw to prevent! accidental movement ofthe screw after the jaw is adjusted, the invention relating also to an improved handle for adjustable wrenches.

An obj ect of the invention is tofprovide an improved and quickaction wrench to enable the jaw to be quickly4 adjusted, a further object being to provide improved means for holding the jaw in the desired position after tures of construction and in the combina# tions `and arrangements of parts, as hereinafter particularly described and set forth in the claims appended hereto.

Referring to the drawings, Figure l is a perspective view of. the improved wrench constructed substantially in accordance with the invention; Fig. 2, a transverse sectional view (corresponding to the plane of the line A A in Fig. ll) Fig. 3, a fragmentary longitudinal sectional view; Fig. 4, a fragmentary longitudinal sectional view on a plane at right angles to theiplane of the section in the preceding'gure; Fig. 5, a fragmentary longitudinal sectional'view on a plane corresponding approximately to the planeat :the line B in Fig. 4L;` Fig. 6, a transverse sectional view approximately 'on the line C C in Fig. `3; Fig. 7, `a fragmentary sectional view on an enlarged scale showing aportion of Fig. 4L without the adjusting screw, and Fig. 8, a side view of .the adjusting screw showing the general shape thereof.

l A Similar reference characters in the severalv figures .of the drawings designate like elef ments or features of construction.

The improved wrench .comprises -a bar a having a aw fixed onone end thereof that has a l'hammer b which may be of` well known forms of construction, thebar serving as a guide and ,also as a lever, the' .oppo- 'site end' portion of the bar being flattened `and forming a handle member c adapted to Vsustain the application `of all the powerfthat may be necessary to be applied thereto, the

member being relatively broad inthe required direction, and it has a rivet-stud d formed on its end. The middle portion a of the bar between .the handle member and the guide portion, or bar a proper, is .adapted to support an abutment with which the adjusting screw is connected. The bar .a has a slide e mounted` movably thereon in theusual manner and it carries a jaw fas usual opposite to the jaw A novel form of abutment g is provided that has a long and substantial bearing part g on the portion a, the abutment having two side flanges h and L extending across opposite sides of the portion a and are rigidly secured thereto by a rivet z', the abut.- mentha'ving screwk threads y' therein -to4 receive a portion' of the screw, and having also a `casing 7c for inclosing and protecting an end of the screw. The casing has a slot Z formed therein and `the abutment has a recess Z therein at the rear of the abutment proper to receive a loclcnut. A handle-band member m extends from the .casing `opposite to one side of the handle member c at a suitable distance therefrom, and is bent to form an end-cap n that is secured tothe member .o

by forming a head 0 .on the stud d that extends through a suitable hole in the cap part,

a band member p extending from the cap part along the opposite side of the handle member c at a suitable distance therefrom and to the flanges /i and L to which the end g of the member is suitably joined as by welding. The band members m and p and cap part n are relatively thin and somewhat broader than the member e. Obviously the band members may be cast integrally with the abutment and casing.

The adjusting screw is double ended and has right-hand and left-hand screw portions r and r', so as to practically form two screws, one having continuous right-hand threads, and the other one continuous lefthand threads, the middle portion of the screw having a knurled enlarged portion s for turning the screw by hand. One end of the screw is fitted into the slide e, and the other end of the screw is fitted to the threads j in the abutment g, and has a knurled locknut thereon that is arranged in the slot Z and partially in the recess Z and has space in the slot to move slightly along the screw portion r, soA as to permit the screw portion to be moved freely when adjusting the movable jaw.

Two wooden counterpart handle members a and u are suitably shaped to fit against the member c and between the members m and p, each wooden member having a projection 'v or 'v' at one side thereof that extends against a similar projection on the companion member between the member c and the member p, the opposite sides of the wooden members having similar projections o or e that extend between the member c and the member m, the wooden members therefor surrounding the member c and being protected by the members m and 79 which serve as a band for the wooden handle members, the latter being secured to the member c by a rivet w, the members u and u being further secured by means of extensions and extending under the edges of the flanges and 7L.

In practical use, after having adjusted the jaw f with respect to the jaw b, to suit the required size of the nut, the lock-nut t should be turned so as to be seated against the rear side of the abutment g and lock the screw against accidental movement, and obviously when the lock-nut is slackened the adjusting screw may be turned freely by hand to readjust the jaw f, which may be accomplished very rapidly by reason of the reverse screw portions.

The improved handle will afford the most convenient handle hold for handling the wrench, being designed to be grasped comfortably by the hand of the operator, the wooden members preventing the hand from becoming excessively cold in winter seasons,

while having the protection of the metallic members to prevent injury to the handle when roughly handled or thrown among other tools.

Having thus described the invention what is claimed as new, is-

1. An adjustable wrench comprising a bar with an integral jaw thereon, a screw-threzuled abutment on the bar having two opposing flanges engaging opposite sides of the bar, a rivet extending through the bar and the flanges, a slide carrying a jaw movably on the bar, a double-acting screw having one end screwed into the slide and its other end screwed i-nto the screw-threaded abutment and provided with a 'lock-nut thereon movable into engagement with the abutment.

2. An adjustable wrench comprising a bar with an integral jaw thereon, a screw-threaded abutment having a bearing part on the bar and having also two opposing flanges engaging opposite sides of the bar, the abutment having also a recess in the bearing part, a casing connected to the abutment and having a slot therein, a rivet extending through the bar and the fianges, a slide earrying a jaw movably on the bar, a doubleacting screw having one end screwed into the slide and its other end screwed into the screwthreaded abutment and extending into the casing thereof, and a lock-nut partially in the slot of the casing and partially in the said recess and screwed onto said screw-end.

3. In an adjustable wrench, the combination with a bar, an integral jaw on the bar, a slide carrying a jaw on the bar, and a double-acting screw having one of its ends screwed into the slide, of an abutment on the bar and having two opposing fianges engaging opposite sides of the bar, there being screw-threads in the abutment that are engaged by the opposite end of the screw, and a rivet extending through the bar and said two flanges and securing said abutment rigidly to said bar, substantially as shown and described.

4. In an adjustable wrench, the combination with a bar that has a shank thereon, an integral jaw on the bar, a slide carrying a jaw on the bar, and a screw connected to the slide, of an abutment on the bar and having two opposing flanges engaging opposite sides of the bar, the abutment being engaged by the screw which extends through the abutment, a rivet extending through the bar and said two flanges, a casing extending from said abutment over the end of the screw that extends theretln'ough,t\vo handle members extending from said casing opposite to but at a distance from said shank, and two handle members engaging the inner sides of said first-described handle members and also two opposite sides of said shank,

each one of said counterpart members havn presence of two witnesses, on the 15th clay ing two portions that extend overaganst of April, 1908. two other opposite sides of said shank'to the like portions of the companion counterpart 5 member, substantially as shown and de- Witnesses:

scribed. y J. H. GARDNER, In testimony whereof, I ax my signature E. T. SILVIUS.

- JAMES y c. BURGESS. 

